38906929 has 8 divisors (see below), whose sum is σ = 40487040. Its totient is φ = 37358256.

The previous prime is 38906921. The next prime is 38906957. The reversal of 38906929 is 92960983.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38906929 - 2³ = 38906921 is a prime.

It is a super-2 number, since 2×38906929² = 3027498248422082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38906921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5319 + ... + 10300.

It is an arithmetic number, because the mean of its divisors is an integer number (5060880).

Almost surely, 2^38906929 is an apocalyptic number.

It is an amenable number.

38906929 is a deficient number, since it is larger than the sum of its proper divisors (1580111).

38906929 is a wasteful number, since it uses less digits than its factorization.

38906929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15719.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 38906929 is about 6237.5419036669. The cubic root of 38906929 is about 338.8511658011.

The spelling of 38906929 in words is "thirty-eight million, nine hundred six thousand, nine hundred twenty-nine".